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630/LB vs 625/LB 19 of 19 identical Swap Change panels

JA Solar JAM72D42-630/LB vs JA Solar JAM72D42-625/LB

JA Solar JAM72D42-630/LB
JAM72D42-630/LB
630 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
JA Solar JAM72D42-625/LB
JAM72D42-625/LB
625 Wp 22.40 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

Identical on every published parameter

All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.

How alike are they
19 of 19 comparable
parameters are identical
identical differs
01

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
630/LB
21,138 kWh
625/LB
20,970 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 630/LB 625/LB
Standard test conditions 25 °C 100.0% of rated power 630 W 625 W
Cool, bright day 40 °C 95.7% of rated power 603 W 598 W
Typical summer roof 55 °C 91.3% of rated power 575 W 571 W
Hot roof 70 °C 87.0% of rated power 548 W 543 W
03

Full specification

Parameter 630/LB 625/LB Difference
Power and efficiency
Rated power 630 Wp 625 Wp Effectively the same
Module efficiency 22.50 % 22.40 % Effectively the same
Power density 225.4 Wp/m² 223.6 Wp/m² Effectively the same
Open-circuit voltage 52.47 V 52.27 V Effectively the same
Voltage at max power 43.90 V 43.71 V Effectively the same
Short-circuit current 15.21 A 15.16 A Effectively the same
Current at max power 14.35 A 14.30 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2465x1134x30 mm 2465x1134x30 mm Same
Module area 2.795 m² 2.795 m² Same
Weight 34.6 kg 34.6 kg Same
Weight per kWp 54.9 kg/kWp 55.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,222 vs #4,774
630/LB leads by 552 places
Power density
#3,907 vs #4,955
630/LB leads by 1,048 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#9,305 vs #9,802
630/LB leads by 497 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,749 vs #3,028
630/LB leads by 279 places
05

More useful comparisons

Open the full database
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D42-650/LB
3 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D42-645/LB
3 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D42-640/LB
3 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D42-635/LB
One difference: module efficiency
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D40-615/LB
8 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D42-630/LB vs JA Solar JAM72D40-610/LB
8 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: JA Solar JAM72D42-630/LB or JA Solar JAM72D42-625/LB?
According to our database: JA Solar JAM72D42-630/LB has higher module efficiency (22.50% vs 22.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar JAM72D42-630/LB and JA Solar JAM72D42-625/LB?
JA Solar JAM72D42-630/LB has a module efficiency of 22.50%, while JA Solar JAM72D42-625/LB is 22.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAM72D42-630/LB use vs JA Solar JAM72D42-625/LB?
JA Solar JAM72D42-630/LB uses TOPCon cells; JA Solar JAM72D42-625/LB uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on JA Solar JAM72D42-630/LB and JA Solar JAM72D42-625/LB?
JA Solar JAM72D42-630/LB has a 30 years power warranty; JA Solar JAM72D42-625/LB has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are JA Solar JAM72D42-630/LB and JA Solar JAM72D42-625/LB bifacial panels?
Both JA Solar JAM72D42-630/LB and JA Solar JAM72D42-625/LB are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: See 340 JA Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.